Have you also checked the generate hit event at the objects you want to collide with?
I have been using the advanced vehicle blueprint provided by UE but it doesn’t seem to generate hit events. i’ve read other’s questions regarding hit events and everything should work but does not. all meshes are root items and all meshes have generate hit events enabled. but a simple print string on the hit event never fires or prints. any info regarding hit events is welcome thx! 
yes absolutely. everything has that checked. that’s why this is an issue. it makes no sense to me at least. all objects and meshes clearly have that checked. and im not even casting on the hit event, rather any and all hit events should print a string and it does not.
for some reason if you put the print string on the other objects’ hit events, they work, but the hit event for the vehicle blueprint never fires
I’m having the same problem, and I can’t find any logical cause or solution.